Full Version: Laser Exhaust Systems
From: RICK (THUMBSUP) [#1]
25 Mar 2007
To: ALL
EDITED: 5 Apr 2007 by DGL
From: UncleSteve [#2]
25 Mar 2007
To: RICK (THUMBSUP) [#1] 25 Mar 2007
Also, an extra fan at the end of the pipe will help draw the exhaust threw the long legnth....
From: Harvey only (HARVEY-ONLY) [#3]
25 Mar 2007
To: RICK (THUMBSUP) [#1] 25 Mar 2007
From: UncleSteve [#4]
25 Mar 2007
To: Harvey only (HARVEY-ONLY) [#3] 25 Mar 2007
Depends on whether it is set up as a push or pull blower through the ducting...... :/
A pull will be more efficient than a push in this instance and one on each end would be optimum. :D
From: Harvey only (HARVEY-ONLY) [#5]
25 Mar 2007
To: UncleSteve [#4] 25 Mar 2007
With the blower outside, it is a pull system.
I would never recommend a push system, too easy for leaks to occur and instead of just reducing the vacuum a little, it would blow some of the gasses out of the leaks and that could be dangerous and smelly.
Duct tape over the joints is a nearly perfect seal for a pull system, and a poor seal for a push system.
From: UncleSteve [#6]
25 Mar 2007
To: Harvey only (HARVEY-ONLY) [#5] 26 Mar 2007
From: Cody (BOBTNAILER) [#7]
25 Mar 2007
To: RICK (THUMBSUP) [#1] 26 Mar 2007
We have our exhaust system in the ceiling, almost directly above my desk (almost - I didn't want it falling on me if something happened to it). It's a big (1 hp?) motor from Grainger, and it's mounted to the roof support system (metal building).
There's about a 20' run of 6" HVAC duct running from the motor down to the wall next to the laser, where it terminates in a 6"/4" reducer. We have a shorter piece of 4" flex hose running from the laser to the wall.
I'll say a few words about the flex hose here....
We started out using the cheap "tin foil" clothes dryer hose. If you move your laser around very much (to clean around it, etc.), you WILL put holes in the duct. As Harvey said, that's not a big deal in "pull" exhaust systems. But it sure is ugly.
At my request, the Engraving Concepts gang recommended a different flex hose that more closely resembles the one on my Purex portable exhaust unit. I can stand on it without it losing its shape (much). It's very flexible (rubber), but it's also incredibly tough.
I don't remember where I bought it or how much it cost....but I'm sure Jeanette would (seems like it was a woodworking supplier :/ ).
.....for what it's worth.....
From: Awardsguy [#8]
26 Mar 2007
To: ALL
From: Pedaler (ROYBREWER) [#9]
27 Mar 2007
To: RICK (THUMBSUP) [#1] 27 Mar 2007
By all means leave your ready order in your showroom! If you are not going to put any emotion into your showroom, if you are not going to put any time into your showroom, if you are not going to put any effort into your showroom, if you are satisfied that showrooms really don't matter and that showrooms don't help you sell and showrooms don't make you more profitable, then by all means, leave your ready orders in your showroom. Additionally, maybe a bale of hay and 1 cat and two dogs to lend some aroma. That way, at least your visitors will know what others are buying.
From: Engravin' Dave (DATAKES) [#10]
27 Mar 2007
To: RICK (THUMBSUP) [#1] 27 Mar 2007
Rick,
My completed work is stored on a designated shelf area in my back room. On occasion, I do display items in the show room, but very selectively.
I personally do not want to risk damage to finished products. It could be something as simple as a minor scratch that would require me to redo a gift or award.
By displaying items in the showroom you are also breaching the confidentiality of the names that have been placed in your care, therefore potentially spoiling a customer's presentation.
If you have extra room to display completed products in your showroom, you need to purchase more samples or inventory to fill those areas.
From: Stunt Engraver (DGL) [#11]
27 Mar 2007
To: Pedaler (ROYBREWER) [#9] 27 Mar 2007
From: Hermes (HERMESSANDOVAL) [#12]
28 Mar 2007
To: RICK (THUMBSUP) [#1] 28 Mar 2007
I've always used PVC pipes, the kind you would use for water drain installations, they're easy to work with and unexpensive, they're quite Ok after five years of passing noxious fumes and standing in the blistering sun. I have the exhaust blower installed inside, it's a noise and vibration reduction installation with springs and a rubber bed. The three exahust blowers are in room of their own along with the air compressor.
As for the showroom, i actually don't have as much space for that as i wish i had, so i store all the finished work in a large table inside the production area, but i do believe it would be a good idea to display it to anyone tha comes by.
I hope this information is useful to you.
From: Cindy (CINDYM) [#13]
29 Mar 2007
To: RICK (THUMBSUP) [#1] 29 Mar 2007
We could never put our completed orders in our showroom! Horrors!
There is too much conflicting traffic where the cat would be out of the bag for surprise awards - I can see it now where the bank president comes in to pick up his order for his bank and sees a plaque that is going to be presented to him from the chamber!
We are known for our CIA approach - we divulge nothing that has to do with our other clients. Our clients know that when they give us info it doesn't go elsewhere and is available for viewing after it is presented only.
This may differ from other opinions, but I feel that your showroom is a place to display what you can do, not what you currently have sold. Plus, finished orders clutter up the crisp, clean look of a showroom.
We put all our finished orders in our office, on a wall shelf unit. The paperwork goes in to an accordian file. The shelf has numbers on it, the paperwork has that number on it. You pull the paperwork, go to the shelf and presto - there's the order.
Cindy Murdoch, CRS
Cascade Engraving & Awards, LLC
From: Harvey only (HARVEY-ONLY) [#14]
29 Mar 2007
To: Cindy (CINDYM) [#13] 29 Mar 2007
Remember that this comes from a mall perspective.
I used to have a crisp clean extremely business look. Everything in categories and totally visible and neat. Does not work well in a mall.
I used to tell my wife that I would never have the displays cluttered like one of our friends has. Her sales were far above ours. Wifey kept buying different picture frames till we ran out of space, they are a good seller.
The more cluttered the area got, the more sales picked up on those products. Other areas are getting intentionally cluttered.
From: Cindy (CINDYM) [#15]
29 Mar 2007
To: Harvey only (HARVEY-ONLY) [#14] 29 Mar 2007
Having lots of product to select from, attractively arranged and kept clean and dusted is a far cry from boxes of finished product cluttering the walkways or shelves.
I started out in this industry working for a guy that had the theory that having finished product in the showroom showed his clients how busy he was. From a salesperson stand point, I hated it because I kept trying to show clients product, and would trip over boxes as I was trying to get close to the wall to pick up a product and hand it to the client. He wrapped the products in newspaper so they wouldn't bump as they were transported, so you saw boxes all over with crumpled newspaper sticking out of the tops of the boxes.
I'll bet your showroom doesn't not match this 'clutter' I'm referring to.
Cindy
From: Harvey only (HARVEY-ONLY) [#16]
29 Mar 2007
To: Cindy (CINDYM) [#15] Unread
Your post made me shudder.
No the show area is neat in that respect, just too many products per shelf.
That seems to be the key.
From: Nick (NICKIONPOE) [#17]
3 Apr 2007
To: Hermes (HERMESSANDOVAL) [#12] 5 Apr 2007
Hermes,
You mentioned a noise reduction device for the exhaust. I would appreciate tips on the construction of this. Recently the exhaust noise has become an issue for us due to a relocation.
From: Harvey only (HARVEY-ONLY) [#18]
3 Apr 2007
To: Nick (NICKIONPOE) [#17] 3 Apr 2007
What we used to do in recording studios for the air conditioning ducts was to build a box with twice the square area of the duct. Looking from the top of the box was the opening to the duct in the lower section...
I'll attach a picture.
The top, bottom, and walls were covered with fiberglass. It muffles all but very high and very low frequencies.
From: UncleSteve [#19]
3 Apr 2007
To: Harvey only (HARVEY-ONLY) [#18] 4 Apr 2007
The baffle system you show is very similar to that used in many auto mufflers..... and all us "guys" have had a car we ran with the muffler removed... until the neighbors and local constable got on our case.. >.<
From: Harvey only (HARVEY-ONLY) [#20]
4 Apr 2007
To: UncleSteve [#19] 4 Apr 2007
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